Search results
- Dictionaryevaporation/ɪˌvapəˈreɪʃn/
noun
- 1. the process of turning from liquid into vapour: "snow cover prevents evaporation of water from the soil"
Powered by Oxford Dictionaries
Definition of Evaporation. Evaporation is a process in which water changes from a liquid state to a gaseous state. While the boiling temperature of the water is 100 degrees Celsius, it evaporates at 0 degrees Celsius very slowly. The rate of evaporation keeps increasing as and when the temperature increases.
Evaporation is a type of vaporization that occurs on the surface of a liquid as it changes into the gas phase. The rate of evaporation is affected by, (1) Temperature: Evaporation increases with an increase in temperature.
What is Evaporation? Evaporation takes place when a liquid turns into a gas. Evaporation is also known as vaporization. Vaporization usually happens on the surface of the water. It is a slow process and occurs at all temperatures. For example, wet clothes take a lot of time to dry due to the slow rate of vaporization.
Evaporation is considered a surface phenomenon, on the other hand, boiling is a bulk phenomenon. Therefore the vaporization process is different from the evaporation process on certain factors. Q.2: Explain about the happenings with the particles before, during, and after the vaporization process.
Evaporation is a process where liquid changes into a gas below the temperature at which it boils. When water gains heat energy it changes to a gas. An increase in temperature speeds up the rate of evaporation.
Answer 2: Boiling takes a shorter time whereas evaporation takes a longer time to complete. Question 3: State some examples of evaporation. Answer 3: Some examples of evaporation are when the ice cubes start melting. The drying up of wet floors and wet clothes is also an example. Further, the evaporation of nail polish remover is also an example.
Assertion :Water kept in an earthen pot becomes cooler during summers. Reason: Evaporates taking latent heat and removal of latent heat results on cooling. Earthen pots have small pores through which the water seeps and as evaporation leads to cooling of the substance.
(c) $$\textbf{Evaporation}$$ : Is the process of converting a liquid into its vapour state either by exposing it to air or by heating. (d) $$\textbf{Crystallization}$$ : Evaporation of liquid from a homogeneous liquid-solid mixture and collecting solid in the form of crystals is called crystallization.
the process of a substance in a liquid state changing to a gaseous state due to an increase in temperature and/or pressure is called evaporation. evaporation is used to separate mixtures in which one component is volatile while the other is not.
Stomatal transpiration: It is the evaporation of water through stomata. Stomata are specialized pores in the leaves. They account for around 80 to 90% of the total water loss from the plants. Cuticular transpiration: Cuticle is an impermeable covering present on the leaves and stem. It causes around 20% of transpiration in plants.
